Developer Reference

  • 2020
  • 07/15/2020
  • Public Content
Contents

Max

Computes the maximum of image pixel values.

Syntax

Case 1: Operation on one-channel data
IppStatus ippiMax_<mod>(const Ipp<datatype>*
pSrc
, int
srcStep
, IppiSize
roiSize
, Ipp<datatype>*
pMax
);
Supported values for
mod
:
8u_C1R
16u_C1R
16s_C1R
32f_C1R
Case 2: Operation on multi-channel data
IppStatus ippiMax_<mod>(const Ipp<datatype>*
pSrc
, int
srcStep
, IppiSize
roiSize
, Ipp<datatype>
max[3]
);
Supported values for
mod
:
8u_C3R
16u_C3R
16s_C3R
32f_C3R
8u_AC4R
16u_AC4R
16s_AC4R
32f_AC4R
IppStatus ippiMax_<mod>(const Ipp<datatype>*
pSrc
, int
srcStep
, IppiSize
roiSize
, Ipp<datatype>
max[4]
);
Supported values for
mod
:
8u_C4R
16u_C4R
16s_C4R
32f_C4R
Include Files
ippi.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
pSrc
Pointer to the source image ROI.
srcStep
Distance in bytes between starts of consecutive lines in the source image.
roiSize
Size of the source ROI in pixels
pMax
Pointer to the maximum pixel value (for one-channel data).
max
Array containing maximum channel values of pixels in the source buffer (for multi-channel data).
Description
This function operates with ROI (see Regions of Interest in Intel IPP ). This function computes the maximum pixel value
pMax
for the source image
pSrc
. In case of a multi-channel image, the maximum is computed over each channel and stored in the array
max
.
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr
Indicates an error condition if
pSrc
or
pMax
pointer is
NULL
.
ippStsSizeErr
Indicates an error condition if
roiSize
has a field with zero or negative value.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804